Adjustable chock-block



No. 751,366. 'PATENTED FEB. 2, 1904.

J. P. ABERNATHY. ADJUSTABLE GHOGK BLOCK.

APPLICATION FILED MAY 29, 1903.

N0 MODEL.

WITNESSES. INVENTOR.

. aways.

U T D STATES Patented February 2, 1904 PATENT OFF CE.

JOHN P. ABERNATHY, OF J ONESBORO, ARKANSAS, ASSIGNOR OF ONE- HALF TOHIETT WAGON COMPANY, OF J ONESBQRO, ARKANSAS.

ADJUSTABLE CHOCK-BLOCK.

SPECIFICATION forming part of Letters Patent No. 751,366, dated February2, 1904.

Application filed May 29, 1903. Serial No. 159,361. (No model.)

' To all whom it may concern:-

Be it known that 1, JOHN P. ABERNATHY, a v

citizen of the United States, residing at Jonesboro, in the county ofCraighead and State of Arkansas, have invented new and useful Improvements in Adjustable Chock-Blocks, of which the following is aspecification.

My invention relates to chock-blocks for log wagons or cars; and theobject of the same is to construct an improved bolster and adjustablechock-blocktherefor which may be set to support a log of any size andhold it against longitudinal movement also.

The simple and novel construction employed by me in carrying out myinvention is fully described and claimed in this specification andillustrated in the accompanying drawings, forming a part thereof,' inwhich Figure 1 is a perspective of one ofmy bolsters, carrying a pair ofchock-blocks. Fig. 2 is a vertical longitudinal section of the same.

Like numerals of reference designate like parts invthe different viewsof the drawings.

The numeral 1 designates a-bolster, which is supported on the bed of acar or wagon and extendstransversely thereof. Parallel guideflanges 3.of uniform height are formed on the sides of the bolster 1 and projectabove the upper face 4 thereof. Transverse apertures 5 are formed in theflanges 3 and are arranged in pairs, the members of which are oppositeto and in alinement with each other.

Concave recesses 6 are formed in the face 4 just below the pairs ofapertures 5 to accommodate rounded lugs 7, formed on the bottoms ofchock-blocks 7, beveled on one end 8, squared on the other end 9, andbeveled on the sides 10. Apertures 11 pass transversely through theblocks 7 to accommodate lockingpins 12, having eyes 13 and shanks 14,which are adapted to fit any pair of apertures 5 and pass through theapertures 11 to secure the blocks in place. The blocks 7 fit snuglybegween the flanges 3, which form guides there- When in use, the blocks?are usually placed with their bevel ends 8 facing the center of thebolster and engaging the round of the log; but their position may bereversed to form standards when square stuif is carried. The beveli-ngofthe sides 10 forms a narrow face at 7, which serves to hold the logagainst longitudinal movement. The combination of the lugs 7 engagingthe recess 6, prevents the longitudinal movement of the blocks, butpermits them to yield slightly when a log is canted over against them toprevent straining.

I do not wish to be limited as to details of construction, as these maybe modified in many. particulars without departing from the spirit of myinvention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with a bolster having apertured guide-flanges thereonI located adjacent to the edges of the upper face of said bolster andextending at right angles to said face, of an apertured chock-blockadjustably mounted intermediate said guide-flanges and a locking-pinpassing through the apertures ssh in said guide-flanges and through theaperture in said chock-blocks, substantially as described.

2. The combination of a bolster-bearing guide-flanges projecting abovethe upper face thereof, said flanges having transverse apertures locatedin alinement in pairs, an apertured chock-block mounted intermediatesaid flanges, and a locking-pin passing through one pair of saidapertures and through an aperture in said chock-block, substantially asdescribed.

3. In a logging-car, the combination of a bolster having guide-flangesprojecting beyond the upper face thereof and having apertures thereinlocated in alinement With each other in pairs, said bolster havingconcave recesses formed therein and located in alinement with saidapertures, a transversely-apertured chock-block, bearing a rounded lugengaging one of said recesses and a pin fitted in one pair of saidapertures and passing through the aperture in said chock-block,substantially as I 0 described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

JOHN P. ABERNATHY.

l/Vitnesses:

S. R. LAING, G. E. MUSE.

